July 6-11, 1998 - Swarthmore, Pennsylvania

Finding your directory on the Forum server

If you are a Sum98 onsite or online participant and need space to create files
on the Forum server, we'll make a folder for you in the directory:
~http/documents/workshops/sum98/participants/
In a browser this is the URL:
http://mathforum.org/workshops/sum98/participants/
[On the Forum server, in Fetch or a telnet session, the directory
~http/documents/workshops/sum98/
is the same as
/var/www/html/workshops/sum98/
because ~http/documents/ is shorthand for /var/www/html/ ]
To get to your directory:
1. Open Fetch. ENTER:
Host: mathforum.org
User ID:
Password:
Directory: ~http/documents/workshops/sum98/participants/
2. Find your folder and double-click on it to open it.
To make a FETCH bookmark that will allow you to open Fetch
in a directory you often use:
1. In Fetch, navigate to the directory you want, e.g.
~http/documents/workshops/sum98/participants/myfolder/
2. From the FILE menu, choose SAVE BOOKMARK. A window will open
that will allow you to navigate on your computer to your
User Folder, name the bookmark (e.g. Fetch.myfolder), and
save it.
3. The next time you want to open Fetch and go to your folder,
just double-click on the Fetch.myfolder icon in your User Folder.

Permissions

First, let's use FETCH to look at permissions in a directory.
We'll use Cathi Sanders' directory for practice.
In FETCH, go to ~http/documents/workshops/sum98/participants/sanders/.
At the top of the window you should see
sanders
and in the window below, something like:
ForumTrialPage...
JSP
JSP-DR3
triangle.gif
The JSP's are directories with files in them from Key Curriculum Press.
Cathi may use them for JavaSketchpad. The others are files Cathi has already
put into her directory.
To look at permissions, in Fetch go to the REMOTE menu and VIEW FILE LIST.
(permissions OWNER GROUP size date created file/folder name)
-rw-r--r-- 1 cathi sum98 777 Jul 4 23:25 ForumTrialPage.html
drwxrwxr-x 3 sarah sum98 8192 Jun 12 02:49 JSP
drwxrwxr-x 3 sarah sum98 8192 Jun 24 16:59 JSP-DR3
-rw-r--r-- 1 cathi sum98 1727 Jul 4 23:26 triangle.gif
Directories have a d in front of them. Files start right out with just a dash.
PERMISSIONS are set by default in groups of 3 when you create a file:
rwx stands for read, write, execute for the
OWNER - the person who created the file or directory
GROUP - in this case sum98, which has been set up
to include Institute participants plus staff
WORLD - everybody else
The defaults when you create a file are -rw-r--r-- .
(For now we won't worry about directories, which have
x's meaning they are executable or viewable; you don't
need an x for a file unless it's a program that you
have to run.)
When you see: -rw-r--r--
the first dash shows it's a file
the next rw- means the OWNER (the person who created it)
can READ and WRITE to this file
the next r-- means the GROUP (sum98) can only
read it, NOT write to it
the last r-- means the WORLD (everybody else) can only
read it. Don't change this for files.

Setting permissions

When Cathi wants the group to be able to write to one of her files,
she needs to set the GROUP permissions for that file to rw- .
To do this, in Fetch she can go to the directory the file is in and:
1. CLICK ONCE on the file to highlight it.
2. Go to the REMOTE menu and choose SET PERMISSIONS.
The window that will open up might look like this:
Set file/folder permissions to:
Search/
Read Write Execute
Owner: x x
Group: x
Everyone: x
3. CHECK THE BOX under WRITE for GROUP:
Search/
Read Write Execute
Owner: x x
Group: x x
Everyone: x
4. CLICK OK.
Only the Owner of a file or directory (and a few staff who have root access)
can set its permissions.